XML 128 R113.htm IDEA: XBRL DOCUMENT v3.20.4
Employee Benefits - Fair Value Measurements of Investments Held by Retirement Plan (Detail)
$ in Thousands
Dec. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets $ 261,030
Common Stock | Equity Securities  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 31,401
Money Market | Cash Equivalents  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 5,237
Quoted Prices in Active Markets for Identical Assets (Level 1)  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 33,722
Quoted Prices in Active Markets for Identical Assets (Level 1) | Common Stock | Equity Securities  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 31,401
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money Market | Cash Equivalents  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 2,321
Significant Other Observable Inputs (Level 2)  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 227,308
Significant Other Observable Inputs (Level 2) | Money Market | Cash Equivalents  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 2,916
Large-Cap Value | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 23,206 [1]
Large-Cap Value | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 23,206 [1]
Large-Cap Growth | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 22,997 [2]
Large-Cap Growth | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 22,997 [2]
Large-Cap Core | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 15,146 [3]
Large-Cap Core | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 15,146 [3]
United States Mid Cap Value | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 4,509 [4]
United States Mid Cap Value | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 4,509 [4]
Mid Cap Growth | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 6,316 [5]
Mid Cap Growth | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 6,316 [5]
Mid Cap Core | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 5,113 [6]
Mid Cap Core | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 5,113 [6]
US Small-Cap Value | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 3,307 [7]
US Small-Cap Value | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 3,307 [7]
Small Cap Value Growth | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 8,674 [8]
Small Cap Value Growth | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 8,674 [8]
Small-Cap Core | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 3,400 [9]
Small-Cap Core | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 3,400 [9]
International Equity | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 32,248 [10]
International Equity | Significant Other Observable Inputs (Level 2) | Equity Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 32,248 [10]
U.S. Core | Fixed Income Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 74,523 [11]
U.S. Core | Significant Other Observable Inputs (Level 2) | Fixed Income Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 74,523 [11]
Intermediate Duration | Fixed Income Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets 24,953 [12]
Intermediate Duration | Significant Other Observable Inputs (Level 2) | Fixed Income Funds  
Defined Benefit Plan Disclosure [Line Items]  
Fair value of assets $ 24,953 [12]
[1] This category contains large-cap stocks with above-average yield. The portfolio typically holds between 60 and 70 stocks.
[2] This category seeks long-term capital appreciation by investing primarily in large growth companies based in the U.S.
[3] This fund tracks the performance of the S&P 500 Index by purchasing the securities represented in the Index in approximately the same weightings as the Index.
[4] This category employs an indexing investment approach designed to track the performance of the CRSP US Mid-Cap Value Index.
[5] This category employs an indexing investment approach designed to track the performance of the CRSP US Mid-Cap Growth Index.
[6] This category seeks to track the performance of the S&P Midcap 400 Index.
[7] This category consists of a selection of investments based on the Russell 2000 Value Index.
[8] This category consists of a mutual fund invested in small cap growth companies along with a fund invested in a selection of investments based on the Russell 2000 Growth Index.
[9] This category consists of a mutual fund investing in readily marketable securities of U.S. companies with market capitalizations within the smallest 10% of the market universe, or smaller than the 1000th largest US company.
[10] This category invests primarily in medium to large non-US companies in developed and emerging markets. Under normal circumstances, at least 80% of total assets will be invested in equity securities, including common stocks, preferred stocks, and convertible securities.
[11] This category currently includes equal investments in three mutual funds, two of which usually hold at least 80% of fund assets in investment grade fixed income securities, seeking to outperform the Barclays US Aggregate Bond Index while maintaining a similar duration to that index. The third fund targets investments of 50% or more in mortgage-backed securities guaranteed by the US government and its agencies
[12] This category consists of a mutual fund which invest in a diversified portfolio of high-quality bonds and other fixed income securities, including U.S. Government obligations, mortgage-related and asset backed securities, corporate and municipal bonds, CMOs, and other securities mostly rated A or better.